CN220021286U - Battery pack device with bulk heating function - Google Patents
Battery pack device with bulk heating function Download PDFInfo
- Publication number
- CN220021286U CN220021286U CN202321558421.7U CN202321558421U CN220021286U CN 220021286 U CN220021286 U CN 220021286U CN 202321558421 U CN202321558421 U CN 202321558421U CN 220021286 U CN220021286 U CN 220021286U
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- CN
- China
- Prior art keywords
- heat pipe
- heat
- phase change
- battery
- change material
- Prior art date
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Links
- 238000010438 heat treatment Methods 0.000 title abstract description 10
- 239000012782 phase change material Substances 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 230000005494 condensation Effects 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
Abstract
The utility model belongs to the technical field of automobile power batteries, and particularly relates to a bulk heating battery pack device which comprises a lower box cover, wherein a plurality of battery modules which are uniformly distributed are arranged on the lower box cover, phase change materials are arranged between two adjacent battery modules, a first heat pipe, a second heat pipe and a third heat pipe are embedded in the phase change materials, and an S-shaped liquid cooling channel is further arranged in the lower box cover. The heat-conducting coefficient of the phase-change material and the heat pipe of the thermal management component is larger than that of the traditional cooling liquid, and the heat of the battery cell can be effectively dissipated at the part where the heat of the battery cell is most easily concentrated, so that the temperature difference of the battery cell is reduced, and the service life of the battery cell is prolonged. The shell lower cover plate with the liquid cooling channel can improve the structural stability of the liquid cooling pipeline and prevent the cooling pipeline from being extruded and broken or deformed due to expansion in the charge and discharge process of the battery cell.
Description
Technical Field
The utility model belongs to the technical field of automobile power batteries, and particularly relates to a battery pack device with scattered heating.
Background
The power battery is the core for supporting the pure electric vehicle, and is key in developing the pure electric vehicle. However, the performance and life of the power battery are very sensitive to temperature, and the theoretical optimal working temperature is between 25 ℃ and 45 ℃. The power battery generates certain heat in the charging and discharging process, so that the temperature is increased, and the temperature increase can influence a plurality of working characteristic parameters of the battery, such as internal resistance, voltage, SOC, available capacity, charging and discharging efficiency and battery life;
a ventilating duct, a liquid cooling channel, a phase change material, a heat pipe and other heat management components are arranged in the power battery for adjusting the temperature of the battery, so that the working temperature of the battery is improved, but the heat dissipation requirement of the power battery is difficult to be met by a single heat management component;
in order to solve the above problems, the present utility model provides a battery pack device with bulk heating.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a bulk heating battery pack device which has the characteristics of good thermal diffusivity, heat conduction efficiency and uniform temperature distribution, and is favorable for providing the safety stability of charge and discharge of a battery under high multiplying power and prolonging the service life of the battery.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a battery package device of bulk heating, includes the lower case lid, install evenly distributed' S a plurality of battery modules on the lower case lid, adjacent two be provided with phase change material between the battery module, inside gomphosis has first heat pipe, second heat pipe, third heat pipe on the phase change material, the inside S type liquid cooling passageway that still is provided with of lower case lid.
As a preferred technical scheme of the heat dissipation battery pack device, the first heat pipe, the second heat pipe and the third heat pipe are divided into an evaporation section and a condensation section, the evaporation section is in contact with the battery module and embedded into the phase change material, and the condensation section extends out of the battery module and is inserted into the lower case cover.
As a preferred technical scheme of the heat dissipation battery pack device, the first heat pipe, the second heat pipe and the third heat pipe are symmetrically distributed on two sides of the phase change material.
As a preferred technical scheme of the battery pack device for heat dissipation, the second heat pipe is positioned on the side central line of the battery module, and the first heat pipe and the third heat pipe are equidistantly arranged on two sides of the second heat pipe and are uniformly distributed on two sides of the phase change material.
As a preferred technical scheme of the battery pack device with the heat dissipation function, the S-shaped liquid cooling channels are distributed at the installation positions of the battery module and the phase change material, and meanwhile an inlet and an outlet are reserved.
As a preferable technical scheme of the battery pack device with the heat dissipation function, the contact surface between the battery module and the lower case cover is coated with heat-conducting silica gel.
Compared with the prior art, the utility model has the beneficial effects that: the heat-conducting coefficient of the phase-change material and the heat pipe of the thermal management component is larger than that of the traditional cooling liquid, and the heat of the battery cell can be effectively dissipated at the part where the heat of the battery cell is most easily concentrated, so that the temperature difference of the battery cell is reduced, and the service life of the battery cell is prolonged. The shell lower cover plate with the liquid cooling channel can improve the structural stability of the liquid cooling pipeline and prevent the cooling pipeline from being extruded and broken or deformed due to expansion in the charge and discharge process of the battery cell.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic diagram of a phase change material and a thermal conduit according to the present utility model;
FIG. 3 is a schematic diagram of the structure of the lower case cover and the S-shaped liquid cooling channel in the present utility model;
in the figure: 1. a first heat pipe; 2. a second heat pipe; 3. a third heat pipe; 4. a phase change material; 5. a lower case cover; 6. an S-type liquid cooling channel; 7. and a battery module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides a battery package device of heat dissipation, including lower case lid 5, install evenly distributed' S a plurality of battery module 7 on the lower case lid 5, be provided with phase change material 4 between two adjacent battery module 7, the inside gomphosis has first heat pipe 1 on the phase change material 4, the second heat pipe 2, the third heat pipe 3, still be provided with S type liquid cooling passageway 6 in the lower case lid 5 inside, utilize phase change material to dispel the heat in this embodiment, then through the heat pipe, transfer the heat to the lower case lid heat dissipation that links to each other and embed the coolant passageway with the heat pipe bottom, phase change material has been realized, the heat pipe coupling heat dissipation, improve radiating efficiency, in addition, compared in traditional heating mode, the device can be through the heat pipe heating of high temperature coolant flow supercooling passageway, the heat pipe is with heat transfer to the electric core realize the battery package heating under the cold environment, make it reach suitable operating temperature.
Specifically, the first heat pipe 1, the second heat pipe 2, and the third heat pipe 3 are divided into an evaporation section and a condensation section, the evaporation section is in contact with the battery module 7 and is embedded into the phase change material 4, the condensation section extends out of the battery module 7 and is inserted into the lower case cover 5, in this embodiment, the lower case cover 5 is made of but not limited to an aluminum alloy material, and the aluminum alloy has the advantages of high hardness, corrosion resistance, and the like, and can support the battery module 7, and when the cooling liquid circularly flows, the lower case cover 5 can quickly cool down.
Specifically, the first heat pipe 1, the second heat pipe 2 and the third heat pipe 3 are symmetrically distributed on two sides of the phase change material 4.
Specifically, the second heat pipe 2 is located on the side central line of the battery module 7, and the first heat pipe 1 and the third heat pipe 3 are equidistant and not only on two sides of the second heat pipe 2, but also are uniformly distributed on two sides of the phase change material 4.
Specifically, the S-type liquid cooling channels 6 are distributed at the mounting positions of the battery module 7 and the phase change material 4, and meanwhile, an inlet and an outlet are reserved, and compared with the conventional cooling plate and box cover structure, the structure of the S-type liquid cooling channels 6 in the embodiment can reduce the vertical height of a battery pack, so that the structure is more compact, and the cooling liquid of the S-type liquid cooling channels 6 is selected from but not limited to mixed liquid of ethanol and water, thereby being beneficial to reducing the freezing point.
Specifically, the contact surface between the battery module 7 and the lower case cover 5 is coated with heat-conducting silica gel, which reduces the contact thermal resistance in this embodiment.
The working principle and the using flow of the utility model are as follows: the battery module 7 is provided with a heat conducting piece on the surface of the shell, the heat conductivity coefficient of the heat conducting piece is larger than that of the shell, or the part of the shell forms a heat conducting part, generally a middle part, the heat conductivity coefficient of the heat conducting part is larger than that of the rest part of the battery core shell, the heat conducting piece or the heat conducting part is arranged in a local high-temperature area of the battery core body, generally the middle part of the side surface of the battery core, so that the heat of the battery core body can be quickly conducted to a heat management part through the heat conducting piece or the heat conducting part, the heat exchange of the area with larger heat productivity of the battery core body is facilitated, the temperature difference of the battery core is facilitated to be reduced, and the service life of the battery core is prolonged
When the battery is charged/discharged and the battery temperature reaches the melting point of the phase change material, the phase change material begins to absorb heat through phase change. Meanwhile, the surface of the evaporation end of the heat pipe at the side part of the battery cell absorbs heat, the internal working liquid evaporates, the temperature and the pressure of steam at the evaporation end are higher than those of other parts, the pressure difference is generated in the heat pipe, so that steam flows to the condensation end of the heat pipe to cool, the heat on the side surface of the battery cell is taken away, the battery is cooled, meanwhile, the liquid cooling channel in the lower case cover flows in cooling liquid, the condensation end of the heat pipe is cooled, and the heat on the lower surface of the battery cell is taken away. Under the common operation of various heat management components, the heat transfer efficiency of the side face and the bottom face of the battery is improved, so that heat can be quickly dissipated, and the service performance and the service life of the battery are improved;
when the environment temperature is too low and the battery works at a low temperature, high-temperature cooling liquid flows into the liquid cooling channel of the lower cover plate to heat the bottom of the battery rapidly, meanwhile, the heat pipe embedded into the lower box body is heated, and heat is transferred from the lower end to the upper end of the heat pipe and heats the side part of the battery cell by utilizing the bidirectional heat conduction characteristic of the heat pipe, so that the temperature of the battery is raised to reach a reasonable working temperature interval.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A bulk heated battery pack device, characterized by: including lower case lid (5), install a plurality of battery module (7) of evenly distributed on lower case lid (5), adjacent two be provided with phase change material (4) between battery module (7), inside gomphosis has first heat pipe (1), second heat pipe (2), third heat pipe (3) on phase change material (4), the inside S type liquid cooling passageway (6) that still is provided with of lower case lid (5).
2. The bulk heated battery pack assembly of claim 1, wherein: the first heat pipe (1), the second heat pipe (2) and the third heat pipe (3) are divided into an evaporation section and a condensation section, the evaporation section is in contact with the battery module (7) and embedded into the phase change material (4), and the condensation section extends out of the battery module (7) and is inserted into the lower box cover (5).
3. The bulk heated battery pack assembly of claim 1, wherein: the first heat pipe (1), the second heat pipe (2) and the third heat pipe (3) are symmetrically distributed on two sides of the phase change material (4).
4. The bulk heated battery pack assembly of claim 1, wherein: the second heat pipes (2) are positioned on the side central line of the battery module (7), and the first heat pipes (1) and the third heat pipes (3) are equidistant on two sides of the second heat pipes (2) and are uniformly distributed on two sides of the phase change material (4).
5. The bulk heated battery pack assembly of claim 1, wherein: the S-shaped liquid cooling channels (6) are distributed at the installation positions of the battery module (7) and the phase change material (4), and an inlet and an outlet are reserved at the same time.
6. The bulk heated battery pack assembly of claim 1, wherein: the contact surface between the battery module (7) and the lower case cover (5) is coated with heat-conducting silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321558421.7U CN220021286U (en) | 2023-06-19 | 2023-06-19 | Battery pack device with bulk heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321558421.7U CN220021286U (en) | 2023-06-19 | 2023-06-19 | Battery pack device with bulk heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021286U true CN220021286U (en) | 2023-11-14 |
Family
ID=88676688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321558421.7U Active CN220021286U (en) | 2023-06-19 | 2023-06-19 | Battery pack device with bulk heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021286U (en) |
-
2023
- 2023-06-19 CN CN202321558421.7U patent/CN220021286U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |